Home / 98,708.85-136,219.31-53,387.73

Finding the Fourth Proportional to 98,708.85, 136,219.31 and 53,387.73

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Solution

The fourth proportional to 98,708.85, 136,219.31 and 53,387.73 is: 73,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,708.85 : 136,219.31 = 53,387.73 : x
  2. Step 2: Convert to fraction form
    98,708.85/136,219.31 = 53,387.73/x
  3. Step 3: Cross multiply
    98,708.85x = 136,219.31 × 53,387.73
  4. Step 4: Simplify right side
    98,708.85x = 7,272,439,743.07
  5. Step 5: Solve for x
    x = 7,272,439,743.07/98,708.85
  6. Step 6: Final answer
    x = 73,675.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.